CN113848282B - Fly ash carbon content measuring device and method, combustion control method and electronic equipment - Google Patents
Fly ash carbon content measuring device and method, combustion control method and electronic equipment Download PDFInfo
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Abstract
The invention relates to a device and a method for measuring carbon content in fly ash, a combustion control method and electronic equipment. The device includes: the first ash taking pipe and the second ash taking pipe are provided with an ash level sensor and a first powder feeder, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeder; the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe; the infrared detection device is used for detecting the fly ash in the coal ash conveying device; the controller is used for controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor; and determining the carbon content of the fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device. Thus, by taking ash in the first stage ash silo of the boiler tail precipitator, the collected fly ash can be made representative.
Description
Technical Field
The invention relates to the technical field of thermal power generation, in particular to a device and a method for measuring carbon content in fly ash, a combustion control method and electronic equipment.
Background
In order to optimize boiler combustion, improve fuel utilization rate and reduce power generation coal consumption, a good coal ash carbon content monitoring means is firstly required.
In the prior art, a fly ash collecting device is arranged in a flue at the tail part of a boiler to measure the carbon content of fly ash, but the fly ash collecting device cannot be always positioned on a streamline of the maximum flow velocity of smoke and ash mixed gas at the tail part of the boiler, so that the most representative fly ash is difficult to ensure.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of the above, the present invention provides a fly ash carbon content measuring device, a fly ash carbon content measuring method, a combustion control method, and an electronic device.
In order to achieve the above object, a first aspect of the present invention provides a device for real-time measuring carbon content in boiler fly ash, comprising:
the first ash taking pipe and the second ash taking pipe are respectively extended into a first-stage coal ash bin of the electrostatic dust collector of the boiler, the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
a controller in communication with the infrared detection device, the high ash level sensor, the low ash level sensor, the first powder feeder, and the second powder feeder, the controller configured to:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor;
and determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device.
Optionally, the controller is configured to control the first and second powder feeders to operate according to the detection signals of the high and low ash level sensors by:
if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to continuously work and controlling the second powder feeder to stop working;
and if the detection signal of the high ash level sensor indicates that the height of the ash jacking level is lower than the ash taking port of the first ash taking pipe and the detection signal of the low ash level sensor indicates that the height of the ash jacking level is higher than the ash taking port of the second ash taking pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continue working.
Optionally, the coal ash delivery device comprises a wheel mixer, a vibratory powder feeder and a dry ash pump;
a feed inlet of the wheel type stirrer is communicated with an ash outlet of the first ash taking pipe and an ash outlet of the second ash taking pipe;
the vibration powder feeder is provided with a vibration shuttle plate, the upper end of the vibration shuttle plate is arranged corresponding to the discharge hole of the wheel type stirrer, the lower end of the vibration shuttle plate is correspondingly provided with the dry ash pump, and the infrared detection device is arranged above the vibration shuttle plate.
Optionally, the dust separator is a first stage dust separator of the boiler.
The second aspect of the invention provides a method for measuring the carbon content of boiler fly ash in real time, which is applied to a device for measuring the carbon content of boiler fly ash in real time, and the device comprises:
the first ash taking pipe and the second ash taking pipe are respectively provided with an ash taking port extending into a coal ash bin of a dust remover on the boiler, the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
the method comprises the following steps:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor;
and determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device.
Optionally, the controlling the first powder feeder and the second powder feeder to operate according to the detection signals of the high ash level sensor and the low ash level sensor includes:
if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to continuously work and controlling the second powder feeder to stop working;
and if the detection signal of the high ash level sensor indicates that the height of the ash jacking level is lower than the ash taking port of the first ash taking pipe and the detection signal of the low ash level sensor indicates that the height of the ash jacking level is higher than the ash taking port of the second ash taking pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continue working.
The third aspect of the present invention provides a combustion control method for a boiler, wherein the boiler is provided with a real-time measuring device for carbon content in fly ash of the boiler, and the device comprises: the first ash taking pipe and the second ash taking pipe are respectively provided with an ash taking port extending into a coal ash bin of a dust remover on the boiler, the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
the control method comprises the following steps:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor;
determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device;
if the carbon content of the fly ash exceeds a preset threshold value, measures such as increasing the air intake of the boiler and adjusting the combustion state of the boiler are taken.
Optionally, the method further comprises:
obtaining an oxygen amount set value in the boiler according to an oxygen amount curve corresponding to the current load of the boiler;
acquiring a current oxygen amount measurement value in the boiler;
and controlling the air intake of the boiler according to the oxygen set value and the oxygen consumption measured value.
Optionally, the method further comprises:
acquiring a current total air volume measured value of the boiler;
and controlling the air intake of the boiler according to the total air volume measured value and the total air volume set value of the boiler.
A fourth aspect of the present invention provides an electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to perform the steps of the method provided by the second aspect of the invention or the steps of the method provided by the third aspect of the invention.
Through the technical scheme, the collected fly ash can be representative by taking the fly ash from the coal ash bin of the boiler dust collector, so that the measured carbon content of the fly ash can reflect the actual combustion state in the boiler. Meanwhile, the first ash taking pipe and the second ash taking pipe are arranged in the coal ash bin of the boiler dust remover, and when the height of the top ash level in the coal ash bin changes, continuous ash taking can be realized through the first ash taking pipe and the second ash taking pipe. Meanwhile, the controller determines the carbon content of the fly ash in the fly ash conveying device in real time according to the measuring signal of the infrared detection device, so that the real-time detection of the carbon content of the fly ash can be realized.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a real-time boiler fly ash carbon content measuring device according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for real-time determination of carbon content in boiler fly ash according to an embodiment of the present invention;
FIG. 3 is a flowchart of a combustion control method of a boiler according to an embodiment of the present invention;
FIG. 4 is a block diagram of an electronic device according to one embodiment of the invention;
FIG. 5 is a block diagram of an electronic device according to one embodiment of the invention.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is:
the system comprises a coal ash bin 10, a first ash taking pipe 20, a high ash level sensor 21, a first powder feeder 22, a second ash taking pipe 30, a low ash level sensor 31, a second powder feeder 32, an infrared detection device 40, a wheel type stirrer 50, a vibration powder feeder 60, a vibration shuttle plate 61 and a dry ash pump 70.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
As described in the background art, the prior art has a fly ash collecting device installed in the tail flue of the boiler to measure the carbon content of fly ash, but has the following disadvantages:
(1) the fly ash collector can not be always positioned on the streamline of the maximum flow velocity of the smoke and ash mixed gas at the tail part of the boiler, so that the most representative fly ash is difficult to ensure.
(2) The collected fly ash is influenced by the combustion condition of the boiler, the load size, the coal quality and the moisture content in the coal. There is no guarantee that the collected fly ash is truly representative of boiler combustion conditions.
(3) The fly ash collector must be severely worn, even resulting in failure to collect fly ash.
(4) There is no reliable and accurate way to determine the collected fly ash. Although the burning method is relatively accurate in carbon content determination, the structure is too complex, and the equipment is often in a state of incapable of normal operation after being operated for a period of time after being installed; in addition, the method can only detect the carbon content of the fly ash by burning one pot by one pot, and the detected data is not real-time.
In order to solve the technical problems in the prior art, the invention provides a device and a method for measuring the carbon content of fly ash, a combustion control method and electronic equipment, so that the carbon content of fly ash can be reliably measured in real time.
Referring to fig. 1, a first aspect of the present invention provides a device for real-time determination of carbon content in boiler fly ash, which may include:
the first ash taking pipe and the second ash taking pipe are respectively provided with an ash taking port extending into an ash bin of an electrostatic dust collector at the tail part of the boiler (for example, a first-stage ash bin of the electrostatic dust collector can be made), the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine; the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe; the infrared detection device is used for detecting the fly ash in the coal ash conveying device; the controller, with infrared detection device, high grey level sensor, low grey level sensor, first powder feeder and second powder feeder communication connection, the controller is configured to:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor; and determining the carbon content of the fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device.
Thus, by taking the ash in the ash bin of the boiler dust collector, the collected fly ash can be made representative, so that the measured carbon content of the fly ash can reflect the actual combustion state in the boiler. Meanwhile, the first ash taking pipe and the second ash taking pipe are arranged in the coal ash bin of the boiler dust remover, and when the height of the top ash level in the coal ash bin changes, continuous ash taking can be realized through the first ash taking pipe and the second ash taking pipe. Meanwhile, the controller determines the carbon content of the fly ash in the fly ash conveying device in real time according to the measuring signal of the infrared detection device, so that the carbon content of the fly ash can be reliably detected in real time.
For example, the infrared detection device may be a coal composition real-time rapid determination device with the model number BG700, and the infrared detection device may include a detection head and a sub-controller connected with the detection head, and the sub-controller may be in communication connection with the controller.
For example, the controller may be configured to control the first and second powder feeders to operate according to the detection signals of the high and low ash level sensors by:
if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to continuously work and controlling the second powder feeder to stop working;
and if the detection signal of the high ash level sensor represents that the height of the ash jacking level is lower than the ash fetching port of the first ash fetching pipe, and the detection signal of the low ash level sensor represents that the height of the ash jacking level is higher than the ash fetching port of the second ash fetching pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continuously work.
Therefore, the controller can realize continuous collection of multiple pairs of fly ash so as to be convenient for continuously measuring the carbon content of the fly ash. Meanwhile, the coal ash on the upper layer in the coal ash bin can be collected through the first ash collecting pipe and the second ash collecting pipe, so that the latest fly ash in the boiler can be collected, and the measured carbon content can reflect the current combustion state of the boiler.
Exemplary soot delivery devices may include wheel blenders, vibratory powder feeders, and dry ash pumps; a feed inlet of the wheel type stirrer is communicated with an ash outlet of the first ash taking pipe and an ash outlet of the second ash taking pipe; the vibration powder feeder is provided with a vibration shuttle plate, the upper end of the vibration shuttle plate is arranged corresponding to a discharge hole of the wheel type mixer, the lower end of the vibration shuttle plate is correspondingly provided with a dry ash pump, and the infrared detection device is arranged above the vibration shuttle plate.
In the scheme, the temperature of fly ash in the coal ash bin is high (generally higher than 200 ℃), coal ash in the coal ash bin enters a wheel type stirrer through a first ash taking pipe or a second ash taking pipe, the coal ash is stirred by the wheel type stirrer to be changed into mortar, the mortar after being cooled is sent to a vibrating shuttle plate through a discharge hole of the wheel type stirrer, the mortar on the vibrating shuttle plate moves downwards, and the processes of draining, quickly drying and cooling are completed. When the mortar moves to the bottom of the vibrating shuttle plate, the mortar enters the detection range of the infrared detection device, and finally the fly ash enters a dry ash pump.
So, can carry out cooling treatment to the fly ash to utilize infrared detection device to carry out the carbon content survey to the fly ash.
For example, the carbon content of fly ash can be detected once in 50ms, 20 times in 1 second, and the average value of 120 detected data is displayed in 6 seconds, so that the display value can be refreshed once every 6 seconds. And the detected carbon content data of the boiler fly ash can be sent to an information network system of a power plant in real time and on line for sharing, so that the working state of the boiler can be adjusted according to the measured carbon content of the fly ash.
Illustratively, the dust separator (which may be, for example, an electrostatic dust separator) may be a first stage dust separator of a boiler. The ash collected by the first-stage dust collector accounts for about 90% of the total ash taken by the whole electrostatic dust collector, so that the fly ash collected by the first-stage dust collector can represent the combustion state of the boiler most. Thus, the measured carbon content in the fly ash can more accurately represent the combustion state of the boiler.
Referring to fig. 1 and 2, a second aspect of the present invention provides a method for measuring the carbon content in the fly ash of a boiler in real time, which is applied to a device for measuring the carbon content in the fly ash of a boiler in real time, and the device may include:
the first ash taking pipe and the second ash taking pipe are respectively provided with an ash taking port extending into an ash bin of a dust remover on the boiler, the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeder, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeder;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
the method may include step S11 and step S12.
In step S11, the operation of the first and second powder feeders is controlled based on the detection signals of the high and low ash level sensors;
in step 12, the carbon content of the fly ash in the coal ash conveying device is determined in real time according to the measurement signal of the infrared detection device.
Illustratively, the operation of the first powder feeder and the second powder feeder is controlled according to detection signals of a high ash level sensor and a low ash level sensor, and the method comprises the following steps: if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to work and controlling the second powder feeder to stop working; and if the detection signal of the high ash level sensor represents that the height of the ash jacking level is lower than the ash fetching port of the first ash fetching pipe, and the detection signal of the low ash level sensor represents that the height of the ash jacking level is higher than the ash fetching port of the second ash fetching pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continuously work.
Referring to fig. 1 and 3, a third aspect of the present invention provides a combustion control method for a boiler, wherein a real-time carbon content measuring device for fly ash of the boiler is arranged on the boiler, and the device comprises: the first ash taking pipe and the second ash taking pipe are respectively provided with an ash taking port extending into an ash bin of a dust remover on the boiler, the ash taking port of the first ash taking pipe is higher than the ash taking port of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeder, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeder;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
the combustion control method may include:
step S21, controlling the first powder feeder and the second powder feeder to work according to the detection signals of the high ash level sensor and the low ash level sensor;
step S22, determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device;
and step S23, if the carbon content of the fly ash exceeds a preset threshold, taking measures of increasing the air intake of the boiler, adjusting the combustion state of the boiler and the like.
Therefore, when the carbon content of the fly ash exceeds the preset threshold value, the carbon content of the fly ash is too high at the moment, and the boiler is not combusted sufficiently, so that the air intake of the boiler is increased, and the combustion efficiency of the boiler is improved.
Illustratively, the method may further comprise: obtaining an oxygen amount set value in the boiler according to an oxygen amount curve corresponding to the current load of the boiler; acquiring a current oxygen amount measurement value in the boiler; and controlling the air intake of the boiler according to the oxygen amount set value and the oxygen consumption measured value.
Illustratively, the method may further comprise: acquiring a total air volume measured value of a current boiler; and controlling the air intake of the boiler according to the total air volume measured value and the total air volume set value of the boiler.
The method for determining the carbon content of the fly ash of the boiler in China is laggard, the determination precision is low, the determination result is unreliable and is not real-time, so that no one can directly introduce the result of the real-time determination into a boiler combustion system to adjust the combustion of the boiler, the BG 700-time infrared coal component real-time rapid determination device selected by the invention is stable and reliable, a computer module of a computer is advanced (the invention patent is applied and issued) and has strong self-learning capacity, and the data of the carbon content of the fly ash of the boiler determined in real time is introduced into a boiler combustion control system to finely adjust the combustion of the boiler after the fly ash of the boiler operates for a period of time, so that the aim of improving the combustion efficiency of the boiler is fulfilled. After the scheme of the application is realized, the significance is profound and is bound to be the first family in the country.
FIG. 4 is a block diagram of an electronic device according to one embodiment of the invention. As shown in fig. 4, the electronic device 700 may include: a processor 701 and a memory 702. The electronic device 700 may also include one or more of a multimedia component 703, an input/output (I/O) interface 704, and a communication component 705.
The processor 701 is configured to control the overall operation of the electronic device 700 to complete all or part of the steps in the above method for measuring the carbon content in the boiler fly ash in real time. The memory 702 is used to store various types of data to support operation at the electronic device 700, such as instructions for any application or method operating on the electronic device 700 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and the like. The Memory 702 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk, or optical disk. The multimedia components 703 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 702 or transmitted through the communication component 705. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 704 provides an interface between the processor 701 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 705 is used for wired or wireless communication between the electronic device 700 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 705 may thus include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 700 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the above-described method for real-time determination of carbon content in boiler fly ash.
In another exemplary embodiment, a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the above-described method for real-time determination of carbon content in boiler fly ash is also provided. For example, the computer readable storage medium can be the memory 702 comprising program instructions executable by the processor 701 of the electronic device 700 to perform the method for real-time determination of carbon content in boiler fly ash.
FIG. 5 is a block diagram of an electronic device according to one embodiment of the invention. As shown in fig. 5, the electronic device 800 may include: a processor 801, a memory 802. The electronic device 800 may also include one or more of a multimedia component 803, an input/output (I/O) interface 804, and a communications component 805.
The processor 801 is configured to control the overall operation of the electronic device 800, so as to complete all or part of the steps of the combustion control method of the boiler. The memory 802 is used to store various types of data to support operation at the electronic device 800, such as instructions for any application or method operating on the electronic device 800 and application-related data, such as contact data, transmitted and received messages, pictures, audio, video, and so forth. The Memory 802 may be implemented by any type of volatile or non-volatile Memory device or combination thereof, such as Static Random Access Memory (SRAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), Erasable Programmable Read-Only Memory (EPROM), Programmable Read-Only Memory (PROM), Read-Only Memory (ROM), magnetic Memory, flash Memory, magnetic disk or optical disk. The multimedia components 803 may include screen and audio components. Wherein the screen may be, for example, a touch screen and the audio component is used for outputting and/or inputting audio signals. For example, the audio component may include a microphone for receiving external audio signals. The received audio signal may further be stored in the memory 802 or transmitted through the communication component 805. The audio assembly also includes at least one speaker for outputting audio signals. The I/O interface 804 provides an interface between the processor 801 and other interface modules, such as a keyboard, mouse, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the electronic device 800 and other devices. Wireless Communication, such as Wi-Fi, bluetooth, Near Field Communication (NFC), 2G, 3G, 4G, NB-IOT, eMTC, or other 5G, etc., or a combination of one or more of them, which is not limited herein. The corresponding communication component 805 may therefore include: Wi-Fi module, Bluetooth module, NFC module, etc.
In an exemplary embodiment, the electronic Device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the combustion control method of the boiler.
In another exemplary embodiment, there is also provided a computer readable storage medium comprising program instructions which, when executed by a processor, implement the steps of the combustion control method of a boiler described above. For example, the computer readable storage medium may be the memory 802 described above including program instructions that are executable by the processor 801 of the electronic device 800 to perform the combustion control method of the boiler described above.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A real-time measuring device for the carbon content of boiler fly ash is characterized by comprising:
the first ash taking pipe and the second ash taking pipe are respectively extended into a coal ash bin of an electrostatic dust collector at the tail part of the boiler, the ash taking port of the first ash taking pipe is higher than that of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
a controller in communication with the infrared detection device, the high ash level sensor, the low ash level sensor, the first powder feeder, and the second powder feeder, the controller configured to:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor;
determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device;
the controller is configured to control the first powder feeder and the second powder feeder to work according to the detection signals of the high ash level sensor and the low ash level sensor by the following method:
if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to continuously work and controlling the second powder feeder to stop working;
and if the detection signal of the high ash level sensor indicates that the height of the ash jacking level is lower than the ash taking port of the first ash taking pipe and the detection signal of the low ash level sensor indicates that the height of the ash jacking level is higher than the ash taking port of the second ash taking pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continue working.
2. The real-time boiler fly ash carbon content measuring device according to claim 1, wherein the coal ash conveying device comprises a wheel mixer, a vibration powder feeder and a dry ash pump;
a feed inlet of the wheel type stirrer is communicated with an ash outlet of the first ash taking pipe and an ash outlet of the second ash taking pipe;
the vibration powder feeder is provided with a vibration shuttle plate, the upper end of the vibration shuttle plate is arranged corresponding to the discharge hole of the wheel type stirrer, the lower end of the vibration shuttle plate is correspondingly provided with the dry ash pump, and the infrared detection device is arranged above the vibration shuttle plate.
3. The device for real-time measurement of carbon content in boiler fly ash according to claim 1, wherein the dust remover is a first-stage dust remover of the boiler.
4. A real-time measuring method for the carbon content of boiler fly ash is characterized by being applied to a real-time measuring device for the carbon content of boiler fly ash, and the device comprises:
the first ash taking pipe and the second ash taking pipe are respectively extended into a coal ash bin of an electrostatic dust collector at the tail part of the boiler, the ash taking port of the first ash taking pipe is higher than that of the second ash taking pipe, the first ash taking pipe is provided with a high ash level sensor and a first powder feeding machine, and the second ash taking pipe is provided with a low ash level sensor and a second powder feeding machine;
the coal ash conveying device is communicated with the ash outlets of the first ash taking pipe and the second ash taking pipe;
the infrared detection device is used for detecting the fly ash in the coal ash conveying device;
the method comprises the following steps:
controlling the first powder feeder and the second powder feeder to work according to detection signals of the high ash level sensor and the low ash level sensor;
determining the carbon content of fly ash in the coal ash conveying device in real time according to the measurement signal of the infrared detection device;
the controlling the first powder feeder and the second powder feeder to work according to the detection signals of the high ash level sensor and the low ash level sensor comprises:
if the detection signal of the high ash level sensor indicates that the height of the top ash level in the coal ash bin is higher than the ash taking port of the first ash taking pipe, controlling the first powder feeder to continuously work and controlling the second powder feeder to stop working;
and if the detection signal of the high ash level sensor indicates that the height of the ash jacking level is lower than the ash taking port of the first ash taking pipe and the detection signal of the low ash level sensor indicates that the height of the ash jacking level is higher than the ash taking port of the second ash taking pipe, controlling the first powder feeder to stop working and controlling the second powder feeder to continue working.
5. An electronic device, comprising:
a memory having a computer program stored thereon;
a processor for executing the computer program in the memory to carry out the steps of the method of claim 4.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109201A (en) * | 1989-12-08 | 1992-04-28 | Trerice Douglas N | Method and associated apparatus for determining carbon content in fly ash |
| CN1542432A (en) * | 2003-11-06 | 2004-11-03 | 华北电力大学 | Method for measuring carbon content in coal-burning boiler and kiln fly ash and on line detection apparatus therefor |
| CN101158626A (en) * | 2007-11-19 | 2008-04-09 | 南京国晟科技有限公司 | Boiler flyash carbon content on-line testing apparatus |
| CN103471875A (en) * | 2013-09-11 | 2013-12-25 | 大唐鲁北发电有限责任公司 | Flying ash sampling device of electric dust remover |
| CN204630782U (en) * | 2015-06-02 | 2015-09-09 | 华电国际电力股份有限公司技术服务中心 | A kind of fume duct fly ash sampler |
| CN113283052A (en) * | 2021-04-15 | 2021-08-20 | 华中科技大学 | Soft measurement method for carbon content in fly ash and combustion optimization method and system for coal-fired boiler |
-
2021
- 2021-11-30 CN CN202111439653.6A patent/CN113848282B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5109201A (en) * | 1989-12-08 | 1992-04-28 | Trerice Douglas N | Method and associated apparatus for determining carbon content in fly ash |
| CN1542432A (en) * | 2003-11-06 | 2004-11-03 | 华北电力大学 | Method for measuring carbon content in coal-burning boiler and kiln fly ash and on line detection apparatus therefor |
| CN101158626A (en) * | 2007-11-19 | 2008-04-09 | 南京国晟科技有限公司 | Boiler flyash carbon content on-line testing apparatus |
| CN103471875A (en) * | 2013-09-11 | 2013-12-25 | 大唐鲁北发电有限责任公司 | Flying ash sampling device of electric dust remover |
| CN204630782U (en) * | 2015-06-02 | 2015-09-09 | 华电国际电力股份有限公司技术服务中心 | A kind of fume duct fly ash sampler |
| CN113283052A (en) * | 2021-04-15 | 2021-08-20 | 华中科技大学 | Soft measurement method for carbon content in fly ash and combustion optimization method and system for coal-fired boiler |
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